Standardization of HTML please

From the e-Activity, describe what you learned about the Website that you selected by looking at the source code. Analyze the different components of the Website such as the version of HTML that was used, comment tags, and if the head elements were marked, what type of information they contained.
Decide if all HTML code should be the same (standardized) or at the discretion of the designer. Explain your decision. Explain how standardizing HTML effects accessibility. Describe some of the accessibility issues that Web developers need to keep in mind when designing a Website Be sure and google web accessibility. It does not relate to how well YOU can access the site.